TOYOTA SIENNA 2007 Service Manual Online

2GR-FE IGNITION – IGNITION COIL AND SPARK PLUGIG–7
IG
(3) Check the spark plug (See page EM-1).
Result
(4) Check the power supply to the ignition coil.
1. Turn the ignition switch to the ON position.
2. Check that there is battery voltage at the
ignition coil positive (+) terminal.
Result
(5) Measure the resistance of the crankshaft
position sensor (See page ES-514).
Result
(6) Check the IGT signal from the ECM (See page
ES-233)
Result
(e) Using a 16 mm (0.63 in.) plug wrench, install the
spark plugs.
Torque: 18 N*m (184 kgf*cm, 13 ft.*lbf)
(f) Connect the 6 fuel injector connectors.
(g) Install the ignition coil assembly (See page IG-10).
2. INSPECT SPARK PLUG
NOTICE:
• Never use a wire brush for cleaning.
• Never attempt to adjust the electrode gap on a
used spark plug.
(a) Check the electrode.
(1) Using a megohmmeter, measure the insulation
resistance.
Standard insulation resistance:
10 M
or higher
HINT:
• If the result is 10 M
or less, clean the plug
and measure the resistance again.
• If a megohmmeter is not available, perform
the following simple inspection instead.
(b) Alternative inspection method:
(1) Quickly accelerate the engine to 4000 rpm 5
times.
Result Proceed to
NG Replace spark plug
OK Go to next step
Result Proceed to
NGCheck wiring between ignition
switch and ignition coil
OK Go to next step
Result Proceed to
NG Replace crankshaft position sensor
OK Go to next step
Result Proceed to
NG Check ECM
OKRepair wiring between ignition coil
and ECM
I039522E10

IG–82GR-FE IGNITION – IGNITION COIL AND SPARK PLUG
IG
(2) Remove the spark plugs.
(3) Visually check the spark plug.
If the electrode is dry, the spark plug is
functioning properly. If the electrode is damp,
proceed to the next step.
(c) Check the spark plug for any damage to its threads
and insulator. If there is damage, replace the spark
plug.
Recommended spark plug
NOTICE:
Use only the listed spark plug or equivalent to
ensure engine performance and smooth
driveability.
(d) Check the spark plug electrode gap.
Maximum electrode gap for used spark plug:
1.4 mm (0.055 in.)
If the gap is greater than the maximum, replace the
spark plug.
Electrode gap for new spark plug:
1.0 to 1.1 mm (0.039 to 0.043 in.)
(e) Clean the spark plugs.
If the electrode has traces of wet carbon, clean the
electrode with a spark plug cleaner and then dry it.
Standard air pressure:
588 kPa (6 kgf*cm
2, 85 psi)
Standard duration:
20 seconds or less
HINT:
Only use the spark plug cleaner when the electrode
is free of oil. If the electrode has traces of oil, use
gasoline to clean off the oil before using the spark
plug cleaner.
(f) Install the ignition coil assembly and spark plug.
(See page IG-10).
Manufacturer Spark Plug Type
DENSO FK20HR11
A163282E01
B062019

2GR-FE STARTING – STARTERST–5
ST
REMOVAL
1. REMOVE BATTERY (See page EM-26)
2. REMOVE NO. 2 AIR CLEANER INLET (See page EM-
28)
3. REMOVE AIR CLEANER CAP SUB-ASSEMBLY (See
page FU-13)
4. REMOVE AIR CLEANER FILTER ELEMENT (See page
EM-28)
5. REMOVE AIR CLEANER CASE SUB-ASSEMBLY (See
page EM-28)
6. REMOVE AIR CLEANER BRACKET
(a) Remove the 2 bolts and the air cleaner bracket.
7. REMOVE NO. 1 AIR CLEANER INLET
(a) Remove the bolt and the No. 1 air cleaner inlet.
8. REMOVE STARTER ASSEMBLY
(a) Disconnect the starter connector.
(b) Open the terminal cap and remove the nut and the
starter wire.
A155041
A160253
A160251

ST–62GR-FE STARTING – STARTER
ST
(c) Remove the 2 bolts and the starter.
DISASSEMBLY
1. REMOVE REPAIR SERVICE STARTER KIT
(a) Remove the nut and disconnect the lead wire from
the repair service starter kit.
(b) Remove the 2 screws which are used to secure the
repair service starter kit to the repair service starter
kit.
(c) Remove the repair service starter kit.
(d) Remove the return spring and the plunger from the
repair service starter kit.
2. REMOVE STARTER YOKE ASSEMBLY
(a) Remove the 2 through bolts and pull out the starter
yoke together with the starter commutator end
frame.
(b) Remove the starter yoke from the starter
commutator end frame.
A160252
A079718
A079719
A079720
A079721

2GR-FE STARTING – STARTERST–7
ST
3. REMOVE STARTER ARMATURE PLATE
(a) Remove the starter armature plate from the starter
yoke.
4. REMOVE DRIVE HOUSING STARTER BEARING
COVER
(a) Using a screwdriver, remove the drive housing
starter bearing cover.
5. REMOVE STARTER ARMATURE ASSEMBLY
(a) Using snap ring pliers, remove the snap ring and
plate washer.
(b) Remove the starter armature from the commutator
end frame.
6. REMOVE PLANETARY GEAR
(a) Remove the 3 planetary gears from the repair
service starter kit.
A079722
A079723
A082440E03
A081167

CH–42GR-FE CHARGING – CHARGING SYSTEM
CH
SYSTEM DIAGRAM
A163272E01

2GR-FE CHARGING – CHARGING SYSTEMCH–5
CH
PROBLEM SYMPTOMS TABLE
Result
Symptom Suspected Area See page
Charge Warning Light Comes ON while DrivingClutch pulley
CH-8
Generator assembly
Noise Occurs from Generator while Engine is RunningV-ribbed belt
CH-9 Clutch pulley
Generator assembly

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEMAX–3
AX
DEFINITION OF TERMS
Te r m D e f i n i t i o n
Monitor description Description of what the ECM monitors and how it detects malfunctions (monitoring purpose and its details).
Related DTCs Diagnostic code
Typical enabling conditionPreconditions that allow the ECM to detect malfunctions.
With all preconditions satisfied, the ECM sets the DTC when the monitored value(s) exceeds the
malfunction threshold(s).
Sequence of operationThe priority order that is applied to monitoring, if multiple sensors and components are used to detect the
malfunction.
While another sensor is being monitored, the next sensor or component will not be monitored until the
previous monitoring has concluded.
Required sensor/components The sensors and components that are used by the ECM to detect malfunctions.
Frequency of operationThe number of times that the ECM checks for malfunctions per driving cycle.
"Once per driving cycle" means that the ECM detects malfunction only one time during a single driving
cycle.
"Continuous" means that the ECM detects malfunction every time when enabling condition is met.
DurationThe minimum time that the ECM must sense a continuous deviation in the monitored value(s) before
setting a DTC. This timing begins after the "typical enabling conditions" are met.
Malfunction thresholds Beyond this value, the ECM will conclude that there is a malfunction and set a DTC.
MIL operationMIL illumination timing after a defect is detected.
"Immediately" means that the ECM illuminates MIL the instant the ECM determines that there is a
malfunction.
"2 driving cycle" means that the ECM illuminates MIL if the same malfunction is detected again in the 2nd
driving cycle.
Component operating rangeNormal operation range of sensors and solenoids under normal driving conditions.
Use these ranges as a reference.
They cannot be used to judge if a sensor or solenoid is defective or not.

AX–4U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE SYSTEM
AX
PARTS LOCATION
C160152E02

U151E AUTOMATIC TRANSAXLE – AUTOMATIC TRANSAXLE ASSEMBLYAX–163
AX
REMOVAL
1. REMOVE ENGINE ASSEMBLY WITH TRANSAXLE
HINT:
(See page EM-26)
2. REMOVE FRONT DRIVE SHAFT ASSEMBLY LH
HINT:
(See page DS-6)
3. REMOVE FRONT DRIVE SHAFT ASSEMBLY RH
HINT:
(See page DS-6)
4. REMOVE TRANSMISSION CONTROL CABLE CLAMP
(a) Remove the bolt and the transmission control cable
clamp.
5. REMOVE WIRE HARNESS CLAMP
(a) Disconnect the wire harnesses from the clamp.
(b) Remove the 3 bolts and 2 clamps.
6. DISCONNECT WIRE HARNESS
(a) Remove the bolt and disconnect the wire harness.
C083203
D030465
G025456